[Bug libstdc++/53457] Accommodate non-compliant ioctl() on VxWorks

["rbmj at verizon dot net" <gcc-bugzilla at gcc dot gnu dot org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53457

--- Comment #5 from rbmj at verizon dot net 2012-05-24 20:39:20 UTC ---
Would something like the following fixincludes hacks work?

/*
 *  Wrap VxWorks ioctl to keep everything pretty
 */
fix = {
    hackname    = vxworks_ioctl_macro;
    files       = ioLib.h;
    test        = " -r vxWorks.h ";

    c_fix       = format;
    c_fix_arg   = "%0\n"
        "#define ioctl(fd, func, arg) ((ioctl)((fd), (func), ((int)(arg))))\n";
    c_fix_arg   = "extern[\t ]+int[\t ]+ioctl[\t ]*\([\t ,[:alnum:]]\);";

    test_text   = "`touch vxWorks.h`"
        "extern int ioctl ( int asdf1234, int jkl, int qwerty ) ;";
};


/*
 *  This hack makes makes unistd.h more POSIX-compliant on VxWorks
 */
fix = {
    hackname    = vxworks_unistd;
    files       = unistd.h;
    test        = " -r vxWorks.h ";

    select      = "#[\t ]*include[\t ]+<vxWorks.h>";
    c_fix       = format;
    c_fix_arg   = "%0\n#include <ioLib.h>\n"
        "#ifndef STDIN_FILENO\n"
        "#define STDIN_FILENO 0\n"
        "#endif\n"
        "#ifndef STDOUT_FILENO\n"
        "#define STDOUT_FILENO 1\n"
        "#endif\n"
        "#ifndef STDERR_FILENO\n"
        "#define STDERR_FILENO 2\n"
        "#endif\n";

    test_text   = "`touch vxWorks.h`"
        "#include <vxWorks.h>\n";
}; 

For some reason fixincludes doesn't seem to be doing *anything* when I build
though - I'm confused as to how I run it.  Though looking at fixincludes/README
and the make check tests, everything *looks* correct.

I'm not sure why fixincludes doesn't appear to be applying any fixes.  I can't
find any headers in GCC's build tree that it's applying to, and it's not
applying them to the system headers either.